Optimal mounting system of a variable displacement engine = 가변기 통화 엔진의 마운트 최적설계

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 267
  • Download : 0
The need for the variable displacement engine which can greatly improve fuel economy has become strong all over the world in recent years, and some of them have aleady reached production. Reducing the number of operating cylinders brings about significant inherent engine vibration. Because of this defect, it is necessary to redesign and refine the engine``s mounting system to isolate vibrations effectively. In the present study, the three degrees-of-freedom dynamic model of an inline four-cylinder engine which has a three point mounting system is developed, and its excitation forces are analyzed at normal and misfiring conditions. Mount locations, inclined angles, and isolator shapes are selected as the design variable to minimize the vibration of the variable displacement engine. This optimization problem is solved by the gradient projection method. Simulation studies using the developed program show that by adjusting the engine``s mounting system, the vibration level is reduced significantly, and thus, at the idling speed, the rms displacement of the engine under the misfiring condition is reduced by about thirty percent.
Advisors
Lee, Chong-Wonresearcher이종원researcher
Description
한국과학기술원 : 기계공학과,
Publisher
한국과학기술원
Issue Date
1985
Identifier
64777/325007 / 000831303
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학과, 1985.2, [ [vi], 93 p. ]

URI
http://hdl.handle.net/10203/46234
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=64777&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0